Nettleden.com - a place for explorers

Freestone is a stone is a fine grained, uniform stone which is soft enough to be cut without shattering or splitting.  Oolitic stones are generally used, the type tyipically quarried from the Corsham area - known as Bath stone.  Although in some countries sandstones is used.

Box Quarry fact sheet - Stretching between Box Hill and the end of Box Tunnel, its the largest stone mine in the country and possibly even the world.